Thanks for the tips! Now I know when I'll stop getting parts, and that there's definitely something for getting star ranks in every cup. I've got 50cc and 150cc done, just need to finish 100cc and Mirror.

The StreetPass bit definitely explains why I keep seeing strange people in the Toad houses in SM3DL.

I think the games already installed into the 3DS system provide the original ideas! There are all those AR minigames, and StreetPass Quest (Find Mii). The AR implementation is the best I've ever seen, and I have tried out various AR sites/apps on the net and on smartphones. The 3DS AR easily beats them.

Give it time, and there will be original games designed around the 3DS' features! Imagine just what can be done with the 3D camera, the AR, SpotPass and StreetPass.

For now, I'm getting 2/3 launch titles. So what if they're sequels to already established franchises? They're GOOD games and the capabilities of the 3DS have given them a fresh feel.